How can I obfuscate my sdk coded with kotlin (and get rid of Metadata)
Finally, I found a way to delete Kotlin metadata annotations.
In order to hide Kotlin metadata annotations, you need to enable R8 full mode.
Here is the information about my environment.
Environment
OS: macOS 10.15.1Android Studio: 3.5.1Gradle: 5.4.1Android Gradle Tool: 3.5.2What you have to do is just add properties to gradle.properties like below
gradle.properties
android.enableR8.fullMode=trueAnd here is my Proguard Rules
proguard-rules.pro
-dontwarn kotlin.**-assumenosideeffects class kotlin.jvm.internal.Intrinsics { static void checkParameterIsNotNull(java.lang.Object, java.lang.String);}FYI, R8 full mode is still testing now, so sometimes it doesn't work well. However, for me, it works perfectly for now.